Rotary engine.



No. 731,425. l 'PATENTED JUNE 23, 1903. C. T. BENSON.

ROTARY ENGINE.

. APPLIUATION HLEn Nov. 1, 1902. I No MODEL*I a JN f No. reinen, y

ilniirn i diferen .ostenten time es, ions.

CHARLES THORVALD BENSON, OF CHICAG, ILLNGIS, ASSIGNU'R IIN? UNE- FOURTII TO BENJAMlN E. BENSQN, UF IHCAGG, lljillNii. A

SEEGIFICATION formingpart of Letters Potent No. 231,42 5, deted Tune 23, i.

Application filed November l, 1902.. Serial No. 129.753. (No modelo To all whom t mn'g/ concern:

Be it known that I, CHARLES THonmLn BENSON, n citizen of the United States, residing it Chica-go, in the county of Cook end State of Illinois, have invented e new and useful Rotary Engine, of which the following;

is e specification.

My invention is an improvement in rotary engines, the object being to produce en enzo gine of this type whiclnsiioll be entomzitio in its opertion and simple in construction, haya ing very few parte, end therefore not iikely to get ont of order and not depending on springs for its volvo action. if; nien-t dilers from the usuel type of rotary enginas, however, in the fact that the valves sind cylinders rotate, while the port nsnziliy termed the piston sind which is the port driven by the steam in the ordinary engine zo is stationery.- i

In the accompanying drawings, Figure l is n perspective View of my device, showing' goers for operating the Velvesc Fig. 2 is e View showing` the cylinder and valves in elovetion end the hub and piston in section. Fig. 3 is s, sectional View on about-the irregw ler' line 3 3 of Fig. 2. Fig. is e. section through one of the valves, theV pecking being shown in elevation. Fig. 5 is a. perspective 3o View of the pecking.

' In the construction of my engine I employ n. suitable bese A, having a. bearing Aforme'd liti-ite upper portion. This bese moy of course loe constructed in any desired maenner. Snpported in these bearings is n hollow non-revolnble shaft Bmw/inge hob portion B. RevoL lubly mounted on this shaft is e. cylinder C; its endsfltting closely against the ends of the hub, peeking-rings B2, carried by the hub, 4o pressing against `the inner fece of the cyliny.den Journeled in the cylinder are three cy giindricel valves D D' D?, which ereedapted tobeer against 'the' inner periphery of the 'cylinder end againstthe ciroumferentiolfsoe ofthe hub. Each of these velveshns-a eeiniu "foirooloogroove D extending iongitudinelly theiengthof the valve. Tworectongnler plates E nro iflrmly secured to opposite sides ot the holo end project to the walls of the A' Se "cylinder, These plates correspond to the pis;

`ton of thensuai rotary engine. The wells of My improve' vdesignnted B5, end those from B4 ere ninrired shafts D4, jonifneleii ot one end in onifi oi" 'tile cylinder, es et D5, and having tile einer end projecting through the opposite end oi? tire cylindeii, end o. gear D" is 'carried ofi in. outer end oi' ea'oii streit V fenieriorly threaded, end csp LGS, i. threaded, fits on noch shoulder, the iii tile oep, being perforated to permit of the sheft. Suitable pnciiioo D9 is iieid` eronnd tile elgeit between iiie ont end stront der. The valves are of enen dioinetor that they preeticeily till the recesses C when in the position of valve D' Fig. order that the valves may 4neenrntely lit tiie re eesses, stripe of oriiss F ere inieid in oe-y riphery of the volvo, extending the length oi the valves, end ere secured in piece by noon. tersunk screws. To give these pleitos cient elasticity to serve este. pecking, are slotted from eech end, ne E", tin. ote being in different plenos and encli extending beyond the other. f i

A large stationery eiiriiG is mounted on the end shaft B adjacent' tlie end of tire cyl inder carrying title vellVe-pee-rs, end tine genre D mesh with' end trenelieronnd the gear G es the cylinder turns, the genre i3 turning; in the seine direction es tiie oyiinden. f i

The shaft B hns beendescriiied notion: nnolis in reality o, section o'i thefsteenvpipe, the steam passage B3 extendingenormer` mately to the center of thefj heb, wiiiere e non perforate partition B7 seperetes it from tiie exhaust-passage B4, which is similnr to tno passage Bfendnhich serves es en inlet-ionesege when the engine is reversed. Two @nsf enges' extend letereliy from. eeen of the nos Yseges BS Birondtlfaose lending from B3 nre- B". A stoom-supply pipe H is suiteoiy coto nested to the shaft ,l sind it is understood, ofcourse, thet e similer pipe is oonneeted to the opposite end ofthe shaft throng 'iiioi'i the engine normali exhan s, bott stenen can be ndmitted o the eigine frein eitlrer side.

The operation of -my engine is as follows: Assuming that the parts are in the position shown lin Fig. 2 and that the cylinder 1s to 'revolve. in the direction of the arrow, steam entering via t-he pipe H, passage B3, and passage Bfwill till'the space between the plate E and the valve D and also between the rear of the valve Dand the other plate E. These valves acting as pistons or abutments will be forced away' fromthe plates in the direction of the arrow, thus rotating the cylinder. The

"valves being rigid upon their shafts will also berotated as the gears D6 will travel on and engage the gear G, and as this gear is stafront of valves D and D2..

tionary the'valveswill rotate also in the direction of the arrow. Atrthe commencement of the revolution there `Jill be no steam in When valve reaches the first plate E, it will have turned to the position of D' and the slot will permit it to pass the plate E, the steam which 'had been actingon the valveD exhausting th rough the first passage B that the valve passes. The operation of allv the valves is practically alike, and a smooth and continuous rotary movementis given the cylinder A. No springs engine from the opposite side,

are required to restore siti-on, and the rotation of vthe valves being dependent on the rotation of the cylinder there is no' danger of their acting too soon or too late. It is also understood that the gears D6 bear sneu av proportion to the gear G and the valves are ofsuch diameter that the slots C will always be presented to the plates E. It is also obvious that to reverse the engine it is necessary to pass the steam into the exhausting through H, and it is further understood that power may be transmitted from the revolving cylinder in any desired' manner, either by belting running. from same or by formed onv its periphery. t

It is understood that any means for governing the engine may be adopted.

Having thus fully described my invention, what I claim'as new, and desire to secure by on saidv shaft, said cylinder having recesses formed in its inner face, cylindrical, recessed valves revolubly mounted within the recesses parts to a normal po-4 a gear means for admitting and exhausting steam on each side of the plates.

2. In a rotary engine, the combination with a hollow stationary shaft having a transverse partition therein and passage-ways on each side of the partition extending to the periphery of the shaft, acylinder revolublymounted on said shaft, plates extending from the shaft to the walls of the cylinder, cylindrical valve's adapted to act as abutments and to pass the plates, means for rotating said valves, and means for admitting steam into the hollow shaft.

3; In a rotary engine, the combination with a hollow stationary shaft having a transverse partition therein and passage-ways on each side of the partition extending tothe periphery ofthe shaft, a cylinder revolubly mounted on said shaft and-having semicircular recesses formed in its inner periphery, oppositely-positioned plates extending from the shaft to the inner face of the cylinder, cylindrical valves mounted in said cylinder, said valves having a groove formed longitudinally thereon and adapted to rotate in the semicircular recesses and to pass the ends of the plates, means for admitting steam to the cylinder, and means for rotating the valves when the cylinder revolves. f

et. In combination with a suitable stationary shaft having a hub, a cylinder revolubly mounted thereonandinclosing theliubhaving recesses formed on its innerface, plates diametrically opposite each other extending from the hub to the inner face of the cylinder, revoluble shafts within the cylinder adjacent the recesses and projecting from one, end of the cylinder, cylindrically-shaped valves having a groove extending their entire length mounted thereon within the cylinder, a large stationarygear-wheel mounted on the stationary shaft, smaller gears carried on the outer ends of the revoluble shaft and adapted to mesh with the stationary gear, and means for admitting and exhausting steam to and from the cylinder.

CHARLES THORVALD BENSON.

Witnesses:

BENJAMIN E. BENSON, CHARLES PARSONS. 

